With the help of QRCodes (one for each student) and barcodes on books, easily manage your classroom library.
Scan a student QRCode and a book to register the book is borrowed by this student.
Then scan the book to mark it as returned.
In order to limit mobile data usage, fetching books details (title, cover) is only done on request.
This application has been developed for a real use case. Maybe it can help others.
QRCode for each student (encoding its name) should be created outside this appliation, I recommend LibreOffice.